Probability Density

Probability density may refer to:

  • Probability density function in probability theory
  • The product of the probability amplitude with its complex conjugate in quantum mechanics

According to quantum mechanics, these two are the same thing.

Famous quotes containing the word probability:

    “Legends of prediction are common throughout the whole Household of Man. Gods speak, spirits speak, computers speak. Oracular ambiguity or statistical probability provides loopholes, and discrepancies are expunged by Faith.”
    —Ursula K. Le Guin (b. 1929)